In 1659, Denmark built a stone fort to replace the earthen lodge that had been erected by the Swedish African Company in the 17th century. It was named Christiansborg, meaning ‘Christian's Fortress’, after the King of Denmark, Christian IV. Escalating Danish trade, initially in gold, then in slaves, led to expansion of the castle; the castle almost quadrupled its original size.
Christiansborg Castle is said to have been so vital to the Danish economy that coinage depicted its image.
Today Christiansborg Castle is locally known as ‘Osu Castle’ or ‘The Castle’ and is listed as a UNESCO World Heritage site.